102102001121 has 4 divisors (see below), whose sum is σ = 102103455744. Its totient is φ = 102100546500.

The previous prime is 102102001093. The next prime is 102102001123. The reversal of 102102001121 is 121100201201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121100201201 = 7 ⋅17300028743.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102102001121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102102001123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616385 + ... + 764286.

It is an arithmetic number, because the mean of its divisors is an integer number (25525863936).

Almost surely, 2^102102001121 is an apocalyptic number.

It is an amenable number.

102102001121 is a deficient number, since it is larger than the sum of its proper divisors (1454623).

102102001121 is an equidigital number, since it uses as much as digits as its factorization.

102102001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454622.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102102001121 its reverse (121100201201), we get a palindrome (223202202322).

The spelling of 102102001121 in words is "one hundred two billion, one hundred two million, one thousand, one hundred twenty-one".